SIEMENS 1FK7044-4CF71-1RB0 PERMANENT-MAGNET SYNCHRONOUS MOTOR

This Siemens permanent-magnet synchronous motor is engineered for precision-driven applications, offering high torque, speed, and braking efficiency. Equipped with a high-resolution absolute encoder, it ensures reliable feedback and positioning performance in demanding industrial environments.

Manufacturer: Siemens
Type: Permanent-Magnet Synchronous Motor
Model: 1FK7044-4CF71-1RB0
No yf: E5649 0442 01 001

Technical Information

• Rated Current: 3.45 A
• Stall Current: 4.0 A
• Rated Speed: 3000 min^-1
• Max. Speed: 9000 min^-1
• Rated Torque: 3.7 Nm
• Stall Torque: 4.5 Nm
• Number of Poles: 6
• Efficiency: 91%
• Voltage Constant (20 ºC): 72.0 V/1000*min^-1
• Torque Constant: 1.13 Nm/A
• Mounting Position: B5
• Thermal Class: 155(F)
• Protection Class: IP64

Brake Details

• Voltage Brake: 24 VDC
• Rated Power Brake: 12 W
• Coil Current Brake: 0.5 A
• Holding Torque Brake: 4 Nm
• Highest Braking Work: 150 J
• Brake Part No.: 3604801

Encoder System

• Type: Siemens AM20DQI
• System: Absolute Encoder 20 Bits (Resolution: 1048576, Encoder-Internal: 512 S/R)
• Multi-Turn: +12 Bits (Traversing Range: 4096 Revolutions)
• Voltage Supply: 216 V
• Protection Class: IP64